I don't think people would be satisfied with anyone doing this job after Bob Barker did it so very well for so many years. Give him time, I think he will grow into it. He does seem like a nice guy.
As for me, I am just so grateful it's not "Rosie O'Donnell's The Price is Right," where she would manage to lecture us on the state of the world (her view of it) in between showcase showdowns.